diff options
Diffstat (limited to 'config/ac-macros/alloca.m4')
-rw-r--r-- | config/ac-macros/alloca.m4 | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/config/ac-macros/alloca.m4 b/config/ac-macros/alloca.m4 deleted file mode 100644 index 8c730dd671f..00000000000 --- a/config/ac-macros/alloca.m4 +++ /dev/null @@ -1,68 +0,0 @@ -AC_DEFUN([MYSQL_FUNC_ALLOCA], -[ -# Since we have heard that alloca fails on IRIX never define it on a -# SGI machine -if test ! "$host_vendor" = "sgi" -then - AC_REQUIRE_CPP()dnl Set CPP; we run AC_EGREP_CPP conditionally. - # The Ultrix 4.2 mips builtin alloca declared by alloca.h only works - # for constant arguments. Useless! - AC_CACHE_CHECK([for working alloca.h], ac_cv_header_alloca_h, - [AC_TRY_LINK([#include <alloca.h>], [char *p = alloca(2 * sizeof(int));], - ac_cv_header_alloca_h=yes, ac_cv_header_alloca_h=no)]) - if test "$ac_cv_header_alloca_h" = "yes" - then - AC_DEFINE(HAVE_ALLOCA, 1) - fi - - AC_CACHE_CHECK([for alloca], ac_cv_func_alloca_works, - [AC_TRY_LINK([ - #ifdef __GNUC__ - # define alloca __builtin_alloca - #else - # if HAVE_ALLOCA_H - # include <alloca.h> - # else - # ifdef _AIX - #pragma alloca - # else - # ifndef alloca /* predefined by HP cc +Olibcalls */ - char *alloca (); - # endif - # endif - # endif - #endif - ], [char *p = (char *) alloca(1);], - ac_cv_func_alloca_works=yes, ac_cv_func_alloca_works=no)]) - if test "$ac_cv_func_alloca_works" = "yes"; then - AC_DEFINE([HAVE_ALLOCA], [1], [If we have a working alloca() implementation]) - fi - - if test "$ac_cv_func_alloca_works" = "no"; then - # The SVR3 libPW and SVR4 libucb both contain incompatible functions - # that cause trouble. Some versions do not even contain alloca or - # contain a buggy version. If you still want to use their alloca, - # use ar to extract alloca.o from them instead of compiling alloca.c. - ALLOCA=alloca.o - AC_DEFINE(C_ALLOCA, 1) - - AC_CACHE_CHECK(whether alloca needs Cray hooks, ac_cv_os_cray, - [AC_EGREP_CPP(webecray, - [#if defined(CRAY) && ! defined(CRAY2) - webecray - #else - wenotbecray - #endif - ], ac_cv_os_cray=yes, ac_cv_os_cray=no)]) - if test "$ac_cv_os_cray" = "yes"; then - for ac_func in _getb67 GETB67 getb67; do - AC_CHECK_FUNC($ac_func, [AC_DEFINE_UNQUOTED(CRAY_STACKSEG_END, $ac_func) - break]) - done - fi - fi - AC_SUBST(ALLOCA)dnl -else - AC_MSG_RESULT("Skipped alloca tests") -fi -]) |